<template>
  <div class="process-panel__container" :style="{ width: `${this.width}px` }">
    <el-collapse v-model="activeTab">
      <el-collapse-item name="base">
        <div slot="title" class="panel-tab__title">
          <i class="el-icon-info" />常规
        </div>
        <element-base-info :id-edit-disabled="idEditDisabled" :business-object="elementBusinessObject" :type="elementType" />
      </el-collapse-item>
      <el-collapse-item v-if="elementType === 'Process'" key="message" name="condition">
        <div slot="title" class="panel-tab__title">
          <i class="el-icon-s-comment" />消息与信号
        </div>
        <signal-and-massage />
      </el-collapse-item>
      <el-collapse-item v-if="conditionFormVisible" key="condition" name="condition">
        <div slot="title" class="panel-tab__title">
          <i class="el-icon-s-promotion" />流转条件
        </div>
        <flow-condition :business-object="elementBusinessObject" :type="elementType" />
      </el-collapse-item>
      <el-collapse-item v-if="formVisible" key="form" name="condition">
        <div slot="title" class="panel-tab__title">
          <i class="el-icon-s-order" />问卷
        </div>
        <element-form :id="elementId" :type="elementType" />
      </el-collapse-item>
      <el-collapse-item v-if="elementType.indexOf('Task') !== -1" key="task" name="task">
        <div slot="title" class="panel-tab__title">
          <i class="el-icon-s-claim" />任务
        </div>
        <element-task :id="elementId" :type="elementType" />
      </el-collapse-item>
      <el-collapse-item v-if="elementType.indexOf('Task') !== -1" key="multiInstance" name="multiInstance">
        <div slot="title" class="panel-tab__title">
          <i class="el-icon-s-help" />多实例
        </div>
        <element-multi-instance :business-object="elementBusinessObject" :type="elementType" />
      </el-collapse-item>
      <el-collapse-item key="listeners" name="listeners">
        <div slot="title" class="panel-tab__title">
          <i class="el-icon-message-solid" />执行监听器
        </div>
        <element-listeners :id="elementId" :type="elementType" />
      </el-collapse-item>
      <el-collapse-item v-if="elementType === 'UserTask'" key="taskListeners" name="taskListeners">
        <div slot="title" class="panel-tab__title">
          <i class="el-icon-message-solid" />任务监听器
        </div>
        <user-task-listeners :id="elementId" :type="elementType" />
      </el-collapse-item>
      <el-collapse-item key="extensions" name="extensions">
        <div slot="title" class="panel-tab__title">
          <i class="el-icon-circle-plus" />扩展属性
        </div>
        <element-properties :id="elementId" :type="elementType" />
      </el-collapse-item>
      <el-collapse-item key="other" name="other">
        <div slot="title" class="panel-tab__title">
          <i class="el-icon-s-promotion" />其他
        </div>
        <element-other-config :id="elementId" />
      </el-collapse-item>
    </el-collapse>
  </div>
</template>
<script>
import ElementBaseInfo from "./base/ElementBaseInfo"
import ElementOtherConfig from "./other/ElementOtherConfig"
import ElementTask from "./task/ElementTask"
import ElementMultiInstance from "./multi-instance/ElementMultiInstance"
import FlowCondition from "./flow-condition/FlowCondition"
import SignalAndMassage from "./signal-message/SignalAndMessage"
import ElementListeners from "./listeners/ElementListeners"
import ElementProperties from "./properties/ElementProperties"
import ElementForm from "./form/ElementForm"
import UserTaskListeners from "./listeners/UserTaskListeners"
import Log from "../Log"
/**
 * 侧边栏
 * @Author MiyueFE
 * @Home https://github.com/miyuesc
 * @Date 2021年3月31日18:57:51
 */
export default {
  name: "MyPropertiesPanel",
  components: {
    UserTaskListeners,
    ElementForm,
    ElementProperties,
    ElementListeners,
    SignalAndMassage,
    FlowCondition,
    ElementMultiInstance,
    ElementTask,
    ElementOtherConfig,
    ElementBaseInfo
  },
  componentName: "MyPropertiesPanel",
  provide() {
    return {
      prefix: this.prefix,
      width: this.width
    }
  },
  props: {
    bpmnModeler: Object,
    prefix: {
      type: String,
      default: "camunda"
    },
    width: {
      type: Number,
      default: 480
    },
    idEditDisabled: {
      type: Boolean,
      default: false
    }
  },
  data() {
    return {
      activeTab: "base",
      elementId: "",
      elementType: "",
      elementBusinessObject: {}, // 元素 businessObject 镜像，提供给需要做判断的组件使用
      conditionFormVisible: false, // 流转条件设置
      formVisible: false // 问卷配置
    }
  },
  watch: {
    elementId: {
      handler() {
        this.activeTab = "base"
      }
    }
  },
  created() {
    this.initModels()
  },
  methods: {
    initModels() {
      // 初始化 modeler 以及其他 moddle
      if (!this.bpmnModeler) {
        // 避免加载时 流程图 并未加载完成
        this.timer = setTimeout(() => this.initModels(), 10)
        return
      }
      if (this.timer) clearTimeout(this.timer)
      window.bpmnInstances = {
        modeler: this.bpmnModeler,
        modeling: this.bpmnModeler.get("modeling"),
        moddle: this.bpmnModeler.get("moddle"),
        eventBus: this.bpmnModeler.get("eventBus"),
        bpmnFactory: this.bpmnModeler.get("bpmnFactory"),
        elementFactory: this.bpmnModeler.get("elementFactory"),
        elementRegistry: this.bpmnModeler.get("elementRegistry"),
        replace: this.bpmnModeler.get("replace"),
        selection: this.bpmnModeler.get("selection")
      }
      this.getActiveElement()
    },
    getActiveElement() {
      // 初始第一个选中元素 bpmn:Process
      this.initFormOnChanged(null)
      this.bpmnModeler.on("import.done", (e) => {
        this.initFormOnChanged(null)
      })
      // 监听选择事件，修改当前激活的元素以及问卷
      this.bpmnModeler.on("selection.changed", ({ newSelection }) => {
        this.initFormOnChanged(newSelection[0] || null)
      })
      this.bpmnModeler.on("element.changed", ({ element }) => {
        // 保证 修改 "默认流转路径" 类似需要修改多个元素的事件发生的时候，更新问卷的元素与原选中元素不一致。
        if (element && element.id === this.elementId) {
          this.initFormOnChanged(element)
        }
      })
    },
    // 初始化数据
    initFormOnChanged(element) {
      let activatedElement = element
      if (!activatedElement) {
        activatedElement =
          window.bpmnInstances.elementRegistry.find((el) => el.type === "bpmn:Process") ??
          window.bpmnInstances.elementRegistry.find((el) => el.type === "bpmn:Collaboration")
      }
      if (!activatedElement) return
      Log.printBack(`select element changed: id: ${activatedElement.id} , type: ${activatedElement.businessObject.$type}`)
      Log.prettyInfo("businessObject", activatedElement.businessObject)
      window.bpmnInstances.bpmnElement = activatedElement
      this.bpmnElement = activatedElement
      this.elementId = activatedElement.id
      this.elementType = activatedElement.type.split(":")[1] || ""
      this.elementBusinessObject = JSON.parse(JSON.stringify(activatedElement.businessObject))
      this.conditionFormVisible = !!(
        this.elementType === "SequenceFlow" &&
        activatedElement.source &&
        activatedElement.source.type.indexOf("StartEvent") === -1
      )
      this.formVisible = this.elementType === "UserTask" || this.elementType === "StartEvent"
    },
    beforeDestroy() {
      window.bpmnInstances = null
    }
  }
}
</script>
